Quartz var. Faden Dara Ismael Khan District, Waziristan, Pakistan |
Wulfenite Wulfenite from Villa Ahumada, Sierra de Los Lamentos, Chihuahua, Mexico |
Corundum Var. Sapphire Balangoda, near Ratnapura, Sabaragamuwa Province, Sri Lanka |
Danburite rough and cut San Luis Potosi, Mexico |
Spinel (rough and cut) Mogok, Sagaing District, Mandalay Division, Burma (Myanmar) |
Opal (rough and cut) Shoa Province, Ethiopia |